Because Spotify is absolutely shit at suggesting new things.
Even if I pick a particular theme there are many artists it won’t include until I manually select them and then magically they appear in the themed list.
The human touch just means being able to suggest similar things based upon experience that is outside your bubble. Spotify makes a personalised experience based upon your bubble, so it can never truely pop.
Is this a Framework, or Deep Computing requirement?
It appears to be a Deep Computing produced board that matches the Framework specification.